Which of the following is a characteristic of solids?
contain particles that are motionless and held in set positions
possess a fixed boiling point
are generally compressible
can exist as crystals with a repeating 3-d pattern

the 1st one

Explanation:

every solid can have different boiling points, gas is compressible not solid

these nuts

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.